Cooling unit



I. T. 'HOLIHAN 2,419,234

COOLING UNIT April 22, 1947.

Filed March 11, 1944 INVENTOR [RV/N0 Z HUL/H/IN ZZZ/47% ATTORNEY j I orcoupling rings thereon; and

UNITED STATES PATENT OFFICE COOLING UNIT Irving T. Holihan, Waterbury,Conn, assignor to Scovill Manufacturing Company, Waterbury, Conn, acorporation of Connecticut Application March 11, 1944, Serial No.526,112

7 Claims.

This invention relates exchange devices. Moreparticularly, the inventionrelates to units or devices of this kind constructed from a plurality ofsimilar blades or vanes having interengaging flange portions to form anassembled unit, and still more particu...

larly, to the use of inner and outer rings at edge portions of theblades for'supporting and retaining the blades in the unit relationship.The novel features of the invention will be best understood from thefollowing description when taken together with the accompanying drawing,

v in which certain embodiments of the invention are disclosed, and inwhich the separate parts are designated by suitable reference charactersin each of the views, and in which:

Fig. 1 is a side View of a unit made according to my invention andindicating in dot and dash lines an adaptation and use thereof. 7

j Fig.2 is an end View of a part of the unit 1 shown in Fig. 1 on anenlarged scale.

Fig. 3 is an enlarged perspective view of one of the blades or vaneswhich I employ in constructing the complete unit, indicating in dot anddash lines the arrangement of the retaining Fig. 4 is an enlarged andbroken sectional view substantially on the line 4-4 of Fig. 2, showing"portions of v inner and outer rings at one end of the unit.

My invention deals with the formation of cool: ing or heat exchangeunits of various kinds and classes, and to illustrate one adaptation anduse, I have diagrammatically outlined in Fig. 1 of the drawing at In anelectric discharge device,

to cooling units or heat.

tions 11 of the blades l4 join the flange portions such for example as aradio tube, including an' anode portion I l upon which one of myimproved cooling units I2 is arranged. At [3 is also indicated in' dotand dash lines electric contact :hmeans engaging the outer peripheralsurface of the unit l2.

In: constructing units of the class under con sideration for .use on theanodes of electric discharge devices of the kind under consideration,

55 and It, and form the radial webs which join the inner and outertubular wall portions, as will clearly appear from a consideration ofFig. 2 of the drawing.

The flange 15 extends to one side surface of the body H, and has aninner flange portion [8 and an offset-flange portion [9 ofisetoutwardlywith respect to the body I! but inwardly with respect to the resultingunit, as will appear from a consideration of Fig. 2 of the drawing. Theflange l6 extends to the other side surface of the body H, and has aninner flange portion 20 and an outwardly ofiset flange portion 2|. Theflanges 25 and 2| are both of greater width than the flanges l3 and itwhich compensates for the different diameters of the tubular portions ofthe resulting unit. These flanges are also curved to produce the desireddifierence in diameters of the inner and outer walls of the unit.

The structure of the unit thus described is i1- lustrative of oneadaptation and use of my invention, and is shown and. described in theapplication of Donald L. Spender, Serial Number 524,831, filed March 1,1944. I

The distinctive feature of my invention resides in shaping blades of thegeneral type and kind described above to provide means for attachingcoupling rings, sleeves or cylinders therewith for supporting andholding the blade assemblage in unit form; and to dispense-with thenecessity of result is accomplished by cutting out end portions of theflanges t9 and 2| to form notches therein as at 22 and 23 respectively.These notches will provide on inner and outer surfaces and both ends ofthe blade assemblage, annular recesses for the reception of inner andouter rings, sleeves or'bands24 and 25 respectively.

These'rings, sleeves or bands 24 and 25 will be made to given diameters,and will be circumferentially solid so that the samecan be forceably M.By using the proper number of blades and with the reasonable amount ofclearances provided between the interfitting offset flange portions, theblades will be forced into firm position with respect to each other andwithin and between the pairs of rings 242 5.

It Will be understood that by increasing or decreasing the number ofblades or vanes employed, within predetermined limits, pairs of rings 26and 25 of different diameters may be employed. On the other hand, whereinsertion or removal of a single blade of the one standard constructionwould not suflice to produce the desired assemblage between the selecteddiameter rings or bands, one special blade or vane having slightlynarrower or slightly larger flanges can be inserted. The rings or bands24 and 25 in addition to supporting the blades or vanes in theassemblage forming the unit, also operate to maintain the inner andouter diameters of the unit and produce at the ends of the unit circumferential continuous inner and outer surfaces.

In addition to employing a drive or snug fit of the rings or bands-24and 25 upon the blades or vanes, other means such as welding, brazing,soldering or the like may be employed to secure the blades together andthe rings or bands to the blades.

In the construction shown, and as will be a parent from a considerationof Fig. 4 of the drawing, the rings or bands 24 and 25 are of the samethickness as the flanges l9 and 2| respectively, so as to maintain flushinner and outer surfaces on the tubular wall portions, and further thewidth of the rings or bands 24 and 25 correspond to the depth of thenotches 22 and 23 so that outer edges of the rings or bands 24 will beflush with corresponding edges of the flanges I8 and 2!.

Having fully described my invention, What I claim as new and desire tosecure by Letters Patent is:

1. A cooling unit for electric discharge devices of the class described,said unit comprising a plurality of similar blades, each blade havin anoffset flange at sid portions thereof, the flange of common sides of theblades overlapping and porting the blades in assembled relationship, andsaid rings being of a thickness corresponding to the thickness of theouter flange portions to lie flushly with exposed surfaces of the outerflange portions.

3. A cooling unit for electric discharge devices of the class described,said unit comprising a plurality of similar blades, each blade having anoffset flange at side portions thereof, the flange of common sides ofthe blades overlapping and interfltting one with the other to form innerand outer tubular wall portions onfsaid unit, the blades having bodyportions extendin radially between and spacing said inner and outer wallportions, said blades forming spaced circulating passages extendinglongitudinally through said unit, the offset portions of the flanges atboth sides of each blade having recesses at the ends of each blade,forming on the resulting inner and outer tubular wall portionscircumferential recesses, rings mounted in said recesses insupinterfitting one with the other to form inner and of the classdescribed, said unit comprising a plurality of similar blades, eachblade havin an offset flange at side portions thereof, the flange ofcommon sides of the blades overlapping and interfltting one with theother to form inner and outer tubular wall portions on said unit, theblades having body portions extending radially between and spacing saidinner and outer wall portions, said blades forming spaced circulatingpassages extending longitudinally through said unit, the offset portionsof the flanges at both sides of each blade having recesses at the endsof each blade, forming on the resulting inner and outer tubular wallportions circumferential recesses, rings mount-ed in said recesses 'insupporting the blades in assembled relationship, and said rings being ofa width corresponding to the width of the circumferential recesses onsaid inner and outer wall portions.

4. A blade for producing devices of the class described by the use of aplurality of such blades held in assemblage by retaining rings, saidblade comprising an elongated body portion, one side edge of the bodyportion having a flange extending in the direction of one surfacethereof, the other side edge of the body portion having a flangeextending in the direction of the opposite surface of said body, saidflanges extending the full length of the body, and each of said flangeshaving outwardly oflset portions shorter than said flanges formingrecesses at the ends of said body for the reception of said retainingrings.

5. In devices of the character described, means forming a plurality ofpartitioned circulating passages eXtending longitudinally of the device,said means comprising a plurality of similar blades, the body portionsof the blades forming the partitioning means of the resulting device,said blades having means at opposed edges thereof for forming otherboundary wall of said passages, one of said last named walls beingformed by interfitting and overlapping flange portions on said blades,the interfitting flange portions of said wall having recesses at theends thereof forming on said wall circumferential end recesses, ringsmounted in said circumferential recesses for retaining the bladesagainst displacement from each other, said interfltting flanges forminga smooth outer surface on said wall, and said rings having outersurfaces flush with the outer surface of said wall.

6. A tubular unit of the class described, cOmprising a plurality ofsimilar :blades arranged side by side in spaced relationship to eachother, said blades being arranged radially wtih respect to the axis ofsaid unit, means spacing inner ends of said blades, the outer ends ofthe blades being spaced by interfitting and overlapping offset flanges,said flanges forming an outer tubular wall for said unit, said wall atthe ends of the unit having circumferential recesses formed by recessedportions in parts of said interfitting flanges, and ring members mountedin said annular recesses and snugly engaging said blades in supportingthe blades in said unit assemblage.

7. A tubular unit of the class described, comprising a plurality ofsimilar blades arranged side by side in spaced relationship to eachother,

said blades being arranged radially with respect to the axis of saidunit, means spacing inner ends of said blades, the outer ends of theblades being spaced by interfitting and overlapping offset flanges, saidflanges forming an outer tubular wall for said unit, said wall at theends of the unit having circumferential recesses formed REFERENCES CITEDThe following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,339,385 Guyer May 11, 1920-1,834,'736 Purdy Dec. 9, 1931 1,976,101 Zeigler Oct. 9, 1934 2,176,657Finch Oct. 17, 1939 2,289,984 Mouromtsefi et a1. July 14, 1942 2,341,752West Feb. 15, 1944

